Conferences + Events

Conferences: Kleefstra Syndrome & Rare Disease Community

We’re thrilled to announce our next in person Family + Scientific Conference at the Westin Waltham from August 6-9, 2026! Stay informed about IDefine’s involvement in the global conversation around Kleefstra Syndrome and rare disease research. Below is a list of upcoming conferences where our team or community members will be present, as well as a historical archive of past events we’ve attended, spoken at, or promoted in partnership with the scientific and rare disease community.

🗓️ Upcoming Conferences

Kleefstra Syndrome Scientific + Clinical Conference (Virtual)

    • Date: September 25-26, 2025
      Details Coming Soon
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  • 2026 North American Kleefstra Syndrome Family + Scientific Conference

    • Date: August 6-9, 2026
    • Location: The Westin, Waltham, MA (Outside of Boston)
    • Purpose:  Our multi-day family and scientific conference serves to inform, educate, and accelerate our mission of advancing research and care for those affected by Kleefstra syndrome. The event brings together families, clinicians, and researchers to strengthen community connections through shared knowledge, lived experiences, and collaborative progress.
      Book Your Hotel Stay »
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    💬 Want to represent IDefine at a conference or share your experience from an event?
    Reach out to us »

KS Day 2025 Fundraiser

Support KS Day 2025

KS Day is our global day of awareness and action for Kleefstra syndrome. Your support helps fund research, empower families, and expand access to care. Let’s make this year’s impact our biggest yet!

Donate Now

Our Blog

The Landstrom family
Family by Fate: The Landstroms’ Kleefstra Syndrome Journey
Maja Landstrom is 12 years old, full of joy, and living with Kleefstra syndrome—a rare genetic condition that affects development and communication. She...

📚 Past Conferences & Events (2020–2025)

Year Conference/Event Location Link
2025 Termeer Institute’s 2nd Annual Rare Disease Day Leiden, Netherlands View »
2024 North American Kleefstra Syndrome Family + Scientific Conference Boston, MA Event Recap »
2022 Global Genes Rare Advocacy Summit San Diego, CA Event Info »
2022 Kleefstra Syndrome Scientific Conference Virtual Watch Recordings »
2021 Kleefstra Syndrome International Scientific Conference Virtual Watch Recordings »

Quick Clips: Kleefstra Syndrome in the News

Nola.com: Mother's calling to help others was heard at her child's bedside

Indianapolis Star: Tools break down barriers for young artists with disabilities at Fishers Elementary

Boston Children's Hospital: Cracking the code on Kleefstra syndrome: It takes a community

2022 Conference

International Kleefstra Syndrome Family + Scientific Conference

Hosted by IDefine, Boston Children’s Hospital Translational Neuroscience Center, Radboud University Medical Center, and KleefstraSyndrome.org

The event is free and open to all families, advocates and organizers interested.

Gallery

Organize a Meet Up

Are you interested in organizing a meetup for families in your area? Reach us at community@idefine.org .

Newsletter Archive

Are you looking for newsletter archive? You can access previous newsletters by clicking here.

We would love to hear from you.

If you have any questions feel free to contact us. We will be sure to get back to you as soon as possible.